Well Samurai actively embraced the Japanese motifs of Shinkenger, which probably isn't something that can be done in Fourze. Still I think the producers will find a way, they've been geniuses at splicing footage thus far.

You re-shoot any scenes that involve interaction between the kids at the school, for any fights that show just generic kids running away and the bad guys in costume you can leave those, just cut away to English scenes.

Really wouldn't be terrible if they wanted to just straight up translate/adapt. The story is pretty good, though they'd have to cut down a bit. And maybe making the headmaster, principal, and two high ranking teachers bad guys would be a bad thing.

Yeah, I don't see Saban doing that in this universe.

I just want to know what it is already...

Prepare for a long drawn out rant...

I don't think that they are going to adapt Kamen Rider Decade because its based on the anniversary of the Heisei era riders and Kamen Rider in general. Its not like the problem with Gokaiger adaptation where partial amount of the Sentai teams are unknown. NONE of the Heisei riders are existent in the PR universe. It would also pain me to reintroduce the Masked Rider warriors and shift their names around because Kamen Rider Nigo was missing (Riderman will never be adapted because of that Japanese face.) If they were going to adapt Decade, have them do it in Alien Rangers-esk storylines where that Rider takes over for a portion of the show. I don't want shoehorned in Power Rider warriors. It also is stupid that Decade would be in Samaurai because of that one episode he was in (ACT 21) and that was ages ago. Therefore, Saban must have been filming new footage with the Decade suit if they were going to introduce Power Rider(or throwing in a forced moment from earlier in the series in the finale). I highly doubt Saban would film original footage introducing a spinoff series near the finale of Samurai. I do have a theory about their names if they were going to introduce the previous to Decade Heisei riders.

Kuuga- Kuga
Agito- Bug warrior
Ryuki- Dragon Knight (duh, already adapted)
Faiz- Cybernetic
Blade- Thunder (Thunder rangers inspiration)
Hibiki- Darkness
Kabuto- Beetle
Den-O- Rails
Kiva- Vampire

If anything, Saban would adapt Kamen Rider W or OOO, why?

1 Toy marketability, Gaia memories and O medals just scream sales. They seem more inviting then cards to kids (I know Megaforce is using cards, but Toei and Bandai never does two toy gimmicks at the same time let alone conservative Saban and BOA).
2 Neo Heisei Riders can be independent from the rest of the KR universe
3 W and OOO actually ran parallel to Goseiger (PR Megaforce)

Saban doesn't have the rights to Dragon Knight, so they'd have to call adapted Ryuki something else if they adapted Decade.

I don't think Adness has the rights to Dragon Knight anymore since they have done jack S*it with it

But it'd work so well with the kids though. I mean who didn't think one of their teachers was evil as a child :lol?

Parents would complain out the ass if they did that, like they did with Lord Zedd

2 Belts, 36 Switches, 4 role play weapons, and the foodroids.
I think Fourze has Double beat in marketability.